Alert archive / Illinois / Flash Flood Warnings in 2015

Flash Flood Warning 41, NWS St. Louis, MO

June 26, 2015Adams County, Brown County, Illinois

NWS St. Louis, MO issued this flash flood warning at Jun 26, 2015, 11:34 AM CDT for Adams County, Brown County, Illinois. It was in force for 6 hr. 2 reports came from inside the area while it was in force.

The area

The outline as issued, with what was reported inside it.

The facts

Issued
Jun 26, 2015, 11:34 AM CDT (16:34 UTC)
Expired
Jun 26, 2015, 5:30 PM CDT
In force
6 hr
Issued by
NWS St. Louis, MO
Area
Storm-based polygon
Flood severity
None

Counties Adams County, IL, Brown County, IL

The radar

The Lincoln radar (KILX), 129 km from the middle of the area, began a volume at 16:35 UTC, the scan nearest the moment this went out.

Open the radar archive at this moment

The archived warnings, watches and discussions in force at that minute are drawn over the scan, this one among them.

What was reported inside it

TimeReportWhereRemark
Jun 26, 12:00 PM CDTFLASH FLOOD2 N Golden, ILNUMEROUS ROADS ARE FLOODED IN THE NORTHEASTERN PORTION OF ADAMS COUNTY INCLUDING ILLINOIS ROUTES 94 AND 61. LIGHT TO MODERATE RAIN STILL FALLING.
Jun 26, 12:00 PM CDTHEAVY RAIN 52 N Golden, ILNUMEROUS ROADS ARE FLOODED IN THE NORTHEASTERN PORTION OF ADAMS COUNTY INCLUDING ILLINOIS ROUTES 94 AND 61. LIGHT TO MODERATE RAIN STILL FALLING.

Local storm reports filed while the alert was in force, from inside its polygon or its counties.

The nearest sounding before it

Davenport, (KDVN), launched 12:00Z, 4.6 hours before the alert went out and 181 km from the middle of its area. This is the routine balloon launch nearest before it, the air the forecaster had in hand, not a measurement taken for the alert.

Skew-T log-pSkew-T log-p diagram, Davenport, at 12:00Z on 2015-06-26Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 29 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Davenport, at 12:00Z on 2015-06-26The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -41 square meters per square second.1939587897Sfc1 km3 km6 km9 kmRMLM
The wind turning with height, colored by layer: ground to 1 km, 1 to 3 km, 3 to 6 km, 6 to 10 km.
Mixed-layer CAPE
29 J/kg
Mixed-layer CIN
-203 J/kg
Mixed-layer LCL
909 m above ground
0-6 km bulk shear
23 kt
0-1 km storm-relative helicity
-41 m²/s²
0-3 km storm-relative helicity
-3 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted, in the capitals the NWS used until 2016.

467 
WGUS53 KLSX 261634
FFWLSX
ILC001-009-262230-
/O.NEW.KLSX.FF.W.0041.150626T1634Z-150626T2230Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE ST LOUIS MO
1134 AM CDT FRI JUN 26 2015

THE NATIONAL WEATHER SERVICE IN ST LOUIS HAS ISSUED A

* FLASH FLOOD WARNING FOR...
  ADAMS COUNTY IN WEST CENTRAL ILLINOIS...
  BROWN COUNTY IN WEST CENTRAL ILLINOIS...

* UNTIL 530 PM CDT

* AT 1134 AM CDT...EMERGENCY MANAGEMENT REPORTED FLASH FLOODING   
ACROSS THE WARNED AREA. US 94 JUST NORTH OF GOLDEN WAS CLOSED DUE TO 
FLASH FLOODING ALONG WITH SEVERAL OTHER COUNTY HIGHWAYS...MOSTLY 
WITHIN THE NORTHEAST CORNER OF ADAMS COUNTY.

* SOME LOCATIONS THAT WILL EXPERIENCE FLOODING INCLUDE...BEVERLY...
  BUCKHORN...CAMP POINT...CLAYTON...GOLDEN...MENDON AND MOUNT
  STERLING.

THIS WARNING INCLUDES SILOAM SPRINGS STATE PARK.

THIS WARNING ALSO INCLUDES...
INTERSTATE 172 NEAR EXIT 19.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

DO NOT DRIVE YOUR VEHICLE INTO AREAS WHERE THE WATER COVERS THE
ROADWAY. THE WATER DEPTH MAY BE TOO GREAT TO ALLOW YOUR CAR TO CROSS
SAFELY.

A FLASH FLOOD WARNING MEANS THAT FLOODING IS IMMINENT OR OCCURRING.
IF YOU ARE IN THE WARNING AREA MOVE TO HIGHER GROUND IMMEDIATELY.
RESIDENTS LIVING ALONG STREAMS AND CREEKS SHOULD TAKE IMMEDIATE
PRECAUTIONS TO PROTECT LIFE AND PROPERTY. DO NOT ATTEMPT TO CROSS
SWIFTLY FLOWING WATERS OR WATERS OF UNKNOWN DEPTH BY FOOT OR BY
AUTOMOBILE.

TO REPORT FLOODING...HAVE THE NEAREST LAW ENFORCEMENT AGENCY RELAY
YOUR REPORT TO THE NATIONAL WEATHER SERVICE FORECAST OFFICE IN ST
LOUIS.

&&

LAT...LON 4019 9092 4010 9091 4010 9070 4009 9070
      4008 9067 4005 9067 4003 9060 3999 9060
      3999 9053 3997 9051 3990 9054 3988 9058
      3984 9058 3984 9092 3979 9092 3979 9122
      4006 9135 4012 9151 4019 9151

$$

GOSSELIN
1 follow-up statement
754 
WGUS73 KLSX 262230
FFSLSX

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE ST LOUIS MO
530 PM CDT FRI JUN 26 2015

ILC001-009-262244-
/O.EXP.KLSX.FF.W.0041.000000T0000Z-150626T2230Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
ADAMS IL-BROWN IL-
530 PM CDT FRI JUN 26 2015

...THE FLASH FLOOD WARNING THAT WAS IN EFFECT FOR BROWN AND ADAMS 
COUNTIES WILL BE ALLOWED TO EXPIRE AT 530 PM CDT...HOWEVER A NEW 
AREAL FLOOD WARNING HAS BEEN ISSUED FOR ADAMS COUNTY.

EXCESS RUNOFF FROM HEAVY RAIN HAS ENDED OVER MOST OF THE WARNED 
AREA. STREAMS AND CREEKS IN THE WARNED AREA HAVE RECEDED OR WERE 
BEGINNING TO RECEDE...ENDING THE FLOOD THREAT. IF FLOODING HAS BEEN 
OBSERVED...PLEASE REPORT IT TO YOUR LOCAL LAW ENFORCEMENT AGENCY.

LAT...LON 4019 9092 4010 9091 4010 9070 4009 9070
      4008 9067 4005 9067 4003 9060 3999 9060
      3999 9053 3997 9051 3990 9054 3988 9058
      3984 9058 3984 9092 3979 9092 3979 9122
      4006 9135 4012 9151 4019 9151

$$

KANOFSKY

The office that day

Everything else NWS St. Louis, MO issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Jun 25, 7:05 PM CDTSevere Thunderstorm WarningLSXClinton, Madison, Saint Clair55 min
Jun 25, 7:27 PM CDTSevere Thunderstorm WarningLSXMacoupin, Montgomery48 min
Jun 25, 7:31 PM CDTFlash Flood WarningLSXCalhoun12 hr
Jun 25, 7:34 PM CDTSevere Thunderstorm WarningLSXCalhoun29 min
Jun 25, 7:41 PM CDTSevere Thunderstorm WarningLSXSaint Clair19 min
Jun 25, 9:03 PM CDTSevere Thunderstorm WarningLSXCalhoun, Jersey42 min
Jun 25, 9:57 PM CDTFlash Flood WarningLSXPike10 hr
Jun 25, 10:03 PM CDTFlash Flood WarningLSXMarion10 hr
Jun 26, 7:30 AM CDTAreal Flood WarningLSXCalhoun, Jersey, Pike12 hr
Jun 26, 7:54 AM CDTAreal Flood WarningLSXMarion36 hr
Jun 26, 10:05 AM CDTFlash Flood WarningLSXAdams6 hr
Jun 26, 3:55 PM CDTAreal Flood WarningLSXAdams6 hr
Jun 26, 5:28 PM CDTAreal Flood WarningLSXAdams24 hr

Nearby

Flash Flood Warnings in Illinois, 2015Every flash flood warning in 2015

Sources

The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.